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68916361 = 793672377
BaseRepresentation
bin1000001101110…
…01010010001001
311210200022110211
410012321102021
5120120310421
610501041121
71464531223
oct406712211
9153608424
1068916361
11359a0978
121b0b61a1
131137c517
14921d413
1560b49e1
hex41b9489

68916361 has 8 divisors (see below), whose sum is σ = 70008320. Its totient is φ = 67830048.

The previous prime is 68916359. The next prime is 68916371. The reversal of 68916361 is 16361986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68916361 - 21 = 68916359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68916301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27805 + ... + 30181.

It is an arithmetic number, because the mean of its divisors is an integer number (8751040).

Almost surely, 268916361 is an apocalyptic number.

It is an amenable number.

68916361 is a deficient number, since it is larger than the sum of its proper divisors (1091959).

68916361 is a wasteful number, since it uses less digits than its factorization.

68916361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823.

The product of its digits is 46656, while the sum is 40.

The square root of 68916361 is about 8301.5878601627. The cubic root of 68916361 is about 409.9908009041.

The spelling of 68916361 in words is "sixty-eight million, nine hundred sixteen thousand, three hundred sixty-one".

Divisors: 1 79 367 2377 28993 187783 872359 68916361